<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Vue 实例</title>
</head>
<body>
    <div id="app">
        <input type="text" v-model="name" placeholder="你的名字">
        <h1>Hello,{{ name }}</h1>
    </div>
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<script>
    var app = new Vue({
        el: '#app',
        data: {
            name: ''
        }
    })
</script>
</body>
</html>